Dear Bondholder(s) Public Issue by Infrastructure Development Finance Company Limited (the “Company”) of long term infrastructure bonds - Tranche 2 of face value of ` 5,000 each, in the nature of secured, redeemable, non-convertible debentures, having beneﬁts under Section 80CCF of the Income Tax Act, 1961 (the “Bonds”), not exceeding ` 29,289.64 million for the ﬁnancial year 2010-11 (the “Issue”). We thank you for your application for the Bonds. The Committee for Issue of Infrastructure Bonds (being duly authorised committee of the Board of Directors), is pleased to allot the below mentioned Bond(s) in accordance with the terms of (i) the Prospectus Tranche – 2 dated January 4, 2011, (ii) the Memorandum and Articles of Association of the Company, (iii) the Basis of Allotment ﬁnalized in consultation with National Stock Exchange of India Limited, being the designated stock exchange for the Issue, (iv) the Application Form, (v) the Companies Act,1956 and other applicable laws, and (vi) the terms mentioned herein. Details of the Bonds Allotted to you are as under:

Please note that the Bonds shall be locked-in for a period of ﬁve years from the Deemed Date of Allotment i.e. February 21, 2011 and should not be traded until the expiry of the lock-in period i.e. up to February 20, 2016. The dispatch of this Allotment Advice forms an irrevocable, valid, binding, non-negotiable and non-transferable obligation on you to acquire the Bonds allocated to you. You will not be entitled to withdraw or cancel or terminate your Application Form. If you had opted for subscribing to the Bonds in physical mode: (i) The Consolidated Bond Certiﬁcate is enclosed along with this Allotment Advice. If you had opted for subscribing to the Bonds in electronic mode: (i) The Bonds allotted to you are being credited to your Beneﬁciary Account as per the details given above. (ii) Nominee details, if any, of the Depository Account shall be applicable. In case you desire to change the name of the nominee, you may please approach your Depository Participant and give necessary instructions for changes to be carried out. All the Bondholders and each of the subsequent transferees of the Bonds are deemed to have knowledge of the contents of the Prospectus – Tranche 2 and the Debenture Trust Deed and by accepting delivery of the Bonds are deemed to have made the representations, agreements and acknowledgements set forth in the Shelf Prospectus, the Prospectus - Tranche 2 and the Application Form. This Allotment Advice is being issued to you on the basis of your acceptance of the terms of the Issue as detailed in the Shelf Prospectus, the Prospectus - Tranche 2 and the Application Form. All capitalized terms used in this Allotment Advice and not speciﬁcally deﬁned shall have the meanings ascribed to such terms in the Shelf Prospectus and the Prospectus - Tranche 2.

List of Enclosure(s)- (if applicable) 1. Bond Certiﬁcate(s)

For Infrastructure Development Finance Company Limited On behalf of the Board of Directors Rajiv B. Lall Managing Director & CEO